Seasonal determination update 2017/18

The Goulburn system and the Loddon system both increased from 93 per cent to 94 per cent high-reliability water shares (HRWS).

A seasonal determination of 20 per cent of low-reliability water shares (LRWS) is available in the Broken system. The Broken system also has 100 per cent HRWS.

The LRWS seasonal determination in the Campaspe system increased from 30 per cent to 33 per cent. The Campaspe system also has 100 per cent HRWS.

The seasonal determination in the Murray system remains unchanged at 100 per cent HRWS and the Bullarook system remains at 100 per cent HRWS and 100 per cent LRWS.

Resource Manager Mark Bailey said tributary inflows in the Broken system downstream of Lake Nillahcootie had improved system resources.

"While low, the tributary inflows helped meet operating commitments and allowed more water in Lake Nillahcootie to be used to improve seasonal determinations," Dr Bailey said.

"The small improvements announced for the seasonal determinations in the Goulburn and Loddon systems also came from tributary flows meeting some of the delivery commitments."

With water borrowed from the Barmah Forest now repaid and a low risk of spill declared earlier this month, the Resource Manager has calculated the shortfall to a LRWS seasonal determination in the Murray system.

"The current shortfall to a low-reliability water share seasonal determination in the Murray system is 860 GL," Dr Bailey said.

"Closure of the shortfall during 2017/18 will depend on the reduction of current commitments and improved inflows to increase resources."

The seasonal determinations for northern Victorian water systems on Wednesday, November 15 were: